Peterma,
Creampuff is being entirely candid when he claims to have entered an engineering apprenticeship at age 15.
I was rather fortunate to be a little bit older "Adult Trainee" at the same institution that he was within. I was 17 in 1975 there.
Creampuff may have taken advantage of further education since then, though....
Years 11 and 12 maybe? Or perhaps a law degree with First Class Honours?
But as yr right may say: " What would I know.."